Measuring device.



No. 875,050. PATENTED DEC. 81, 1907.

D. E. GONLO N.

MEASURING DEVICE.

APPLICATION FILED APR.16, 1907.

V" r I A DANIELE. CONLON, or wo MEASURING DEVICE.

No. 875,050. Specification of Application filed April 15.

To all whom it may concern:

Be it known that I, DANIEL E. CoNLoN, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Measuring Device, of which the following is a specification.

This invention relates to an improvement in machiniststools, designed for accurately Ineasuring heights on planers, lathes, and

7 similar machines, for setting calipers and for similar purposes.

The principlal objects of the invention are to improve t e structure of devices of this character, whereby the adjustment will not be limited by the length of an adjusting screw, and to provide a convenient and simple arrangement for adjusting the gageblock in such a manner that it can be roughly set to position by hand and then moved to secure final adjustment.

Further) objects and advantages of the invention will appear hereinafter.

Reference is to be'hadto the accompanying drawings which show a preferred form of the invention, ,and in which Figure 1 is a side elevation of a measuring device constructed in accordance with this invention. Fig. 2 is a plan of the same. Fig. 3 is a central longitudinal sectional view of the same. Fig. 4 is a sectional view on the line 44 of Fig. 3, and Fig. 5 is a fragmentary side View showing the side opposite to that shown in Fig. 1. i

This invention relates to that class of measuring devices in which a wedge-shaped base 10 is provided with a uide on its upper inclined surface along whic a gage-block 11 is adapted to move. The guide in the Wedge-shaped base in this instance is formed by a dove-tail slot 12 extending'from one end to the other. The gage-block is preferably provided with two or more steps 13 and 14 at different heights. The upper surfaces of these steps are parallel with the'lower surface of the wedge-shaped base, and they are preferably at such a distance-apart that when the gage-block is at the bottom of the in-.

of a shape similar to clir' .d plane, the top of the step 13 will be at about the same height as the top of the step 14 when the gage-block is at the highest.

{point of theinclined plane- I The gage-block is rovided with a slot 15 ml-which is locate a tightening nut 16 mounted on a screw 17 which has a head 18 rarnnr ora ion.

RCESTER, MASSACHUSETTS.

Letters Patent,

1907. Serial No. 368,179.

A Patented Dec. 31, 1907.

groove and located in a recess in the bottom of the gage-block. The gage-block is provided with a guiding projection 20 forming a continuation of the screw head, located'in shapedbase. This slot therefore holds the head of the screw inproper position with respect to it, and the nut 16 serves to tighten the screw so as to secure the gage-block in any desired position on the upper slanting surface of the wedge-shaped base.

In order that the gage-block may be adjusted with more accuracy than can be se, cured by simply moving it to desired position by hand, an adjusting block'21 is mounted in line with it. Thisblock has a projection .22 for entering the slot 12, and it is provided with a screw 23 having a head 24 like the head 18, and for the same purpose. This screw is provided with a tightening nut 25 for securing the adjusting block in any desired position. On this block are mounted a pair of bearings 26 spaced apart for the reception of a screw 27- whichisfixed in the gage-block. Located between these bearings is a nut 28 Y which can be turned to adjust the distance adapted to show the micrometiic adjusth ments of the screw 27 by means of a scale on the nut 28.

The base may be conveniently provided with a perforation 34 by means of which the instrument may be hung u when not in use. While I have illustrate and described a preferred form of the invention, I am aware that modifications, may be made therein by any erson'skilled in the art without departpressed in the claims. Therefore, I do not wish to be limited 2 shown, but 1 What I do claim is 1. In a measuringtool of a wedge-shaped base'having a dove-tailed that of the dove-tail bearings 26 is also provided withga mark 38 ing cm the scope of the invention as ex to the particular form the doveetail guiding slot of the wedgethe hombination slot in one edge thereof, fan adjusting block hav ng a guiding projection along said slot,

. the bottom of the base, a screw' mountedin and connected with the adjusting lock.

-in said slot, a screw passing through said block and having ahead in said slot, a nut having a guiding projection mounted in the a screw havin a dove-tailed shaped head in said slot, sai screw passing t ough theblock, a nut for clamping said screw for holding theblock in any adjusted position on the base, a age block mounted on the base and guided said slot, means for'holding the gage bloc on the base in said slot, and an adjusting device mounted on the age block '2. In a measuring tool, thecombination of abase having a slot inone edge thereof, an adjusting block having a guiding rojection for clamping said screw to hold the block in adjusted positions on the base, a gage block slot and having a gaging surface parallel with screw having a head located in said slot for k block.

fixing the gage block in adjusted positions thereon,-a nut for said screw mounted on the gage block and projectin beyond the side surfaces thereof, and ana j usting screw connecting the gage block with the adjusting block.

4. In a measuring tool, the combination of a wedge-shaped base having a dove-tail slot.

in' one ed e thereof, an adjusting block having a gui ing projection entering said slot, a

screw having a dove-tail sha ed head in said slot passing through said b ock, a nut for clamping said screw for holding the block in anyadjusted position on the base, a gageblock having a guiding projection also mounted i said slot, and having a plurality of gagingiurfaces at different elevations parallel with the bottom of said base, a screw having a dove-tail head located in said groove, a nut for said screw mounted in the gage-block for tightenin the same, said nut projecting beyond t e side surfaces of the gage-block,

and an adjusting screw mounted on the gage-block and connected with the adjusting In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

DANIEL E. CONLON, Witnesses: a

4 J. ELMER HA L, ALBERT E. FAY. 

